Light emitting device and image forming apparatus

3. The light emitting device according to claim 2, wherein the first correction method comprises adjusting the average light intensity by changing a voltage that is applied to the light emitting elements.

4. The light emitting device according to claim 1, wherein the controller is configured to calculate correction amounts of the light emitting elements included in each of the groups excluding the light emitting elements at the two ends of the group by interpolation based on the correction amounts of the light emitting elements at the two ends and to perform correction using the second correction method.